County ZIP codes · Ohio · FIPS 39021
Champaign County, OH ZIP Codes
Champaign County, Ohio has 18 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 17 residential and 1 for PO boxes or a single organization. 10 of the residential ones lie mainly in Champaign County and 7 mainly in a neighboring county; 11 cross the county line. Median household income ranges from $62,014 in 43060 (North Lewisburg) to $102,841 in 43009 (Cable) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Champaign County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $73,816 and $88,988.
They carry 17 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 17 residential ZIP codes in Champaign County
10 ZIP codes lie mainly in Champaign County; 7 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 43078 | Urbana | 19,695 | 131 | $74k | $198k | 99% |
| 43072 | Saint Paris | 5,253 | 69 | $76k | $188k | 100% |
| 43044 | Mechanicsburg | 4,964 | 62 | $76k | $235k | 69% |
| 43060 | North Lewisburg | 2,359 | 90 | $62k | $170k | 69% |
| 43009 | Cable | 2,229 | 66 | $103k | $258k | 100% |
| 45317 | Conover | 1,187 | 55 | $61k | $305k | 48% |
| 43084 | Woodstock | 991 | 47 | $78k | $244k | 98% |
| 45389 | Christiansburg | 708 | 3,522 | $62k | $128k | 100% |
| 43070 | Rosewood | 170 | 415 | – | – | 100% |
| 43047 | Mingo | 18 | 1,636 | – | – | 100% |
Partly in Champaign County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 43357 | West Liberty | 4,899 | 72 | $92k | $235k | 44% |
| 43318 | De Graff | 4,352 | 68 | $92k | $216k | 32% |
| 43343 | Quincy | 1,366 | 38 | $63k | $157k | 23% |
| 43045 | Milford Center | 1,739 | 46 | $99k | $275k | 7% |
| 45312 | Casstown | 1,086 | 40 | $92k | $279k | 2% |
| 45502 | Springfield | 17,692 | 153 | $89k | $244k | 1% |
| 45344 | New Carlisle | 16,979 | 243 | $79k | $175k | 1% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
12 ZIP codes of Champaign County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Champaign | Elsewhere |
|---|---|---|
| 43078 | 99% | |
| 45502 | 1% | Clark County 99% |
| 45344 | 1% | Clark County 78%; Miami County 20% |
| 43044 | 69% | Madison County 16%; Clark County 15% |
| 43357 | 44% | Logan County 56% |
| 43318 | 32% | Logan County 68% |
| 43060 | 69% | Logan County 22%; Union County 9% |
| 43045 | 7% | Union County 93% |
| 43343 | 23% | Logan County 77% |
| 45317 | 48% | Miami County 38%; Shelby County 14% |
| 45312 | 2% | Miami County 98% |
| 43084 | 98% | Union County 2% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 43083 | Westville |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Champaign County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Champaign County's ZIP codes use 4 prefixes: 430, 433, 453 and 455.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 430 | Columbus, OH (SCF 430) | 10 | 70 |
| 433 | Columbus, OH (SCF 430) | 3 | 43 |
| 453 | Dayton, OH (SCF 453) | 4 | 80 |
| 455 | Dayton, OH (SCF 453) | 1 | 6 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.